[List UI Unification] Basic list unification for phones

chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java
index eb44cee421a05225b259feca349366eb2cad6df3..358e08554f4abdb14b5eae88852e4905137d8a09 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java
@@ -14,7 +14,6 @@ import android.support.v4.view.GravityCompat;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v4.widget.DrawerLayout.DrawerListener;
 import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.RecyclerView.ItemAnimator;
 import android.support.v7.widget.Toolbar.OnMenuItemClickListener;
 import android.view.Gravity;
 import android.view.LayoutInflater;
@@ -174,7 +173,6 @@ public class DownloadManagerUi implements OnMenuItemClickListener, SearchDelegat
     private final ListView mFilterView;
     private final UndoDeletionSnackbarController mUndoDeletionSnackbarController;
     private final RecyclerView mRecyclerView;
-    private final ItemAnimator mItemAnimator;
 
     private BasicNativePage mNativePage;
     private Activity mActivity;
@@ -201,16 +199,15 @@ public class DownloadManagerUi implements OnMenuItemClickListener, SearchDelegat
                 mMainView.findViewById(R.id.selectable_list);
 
         mSelectableListLayout.initializeEmptyView(
-                VectorDrawableCompat.create(mActivity.getResources(),
-                        R.drawable.downloads_big, mActivity.getTheme()),
-                R.string.download_manager_ui_empty);
+                VectorDrawableCompat.create(
+                        mActivity.getResources(), R.drawable.downloads_big, mActivity.getTheme()),
+                R.string.download_manager_ui_empty, R.string.download_manager_no_results);
 
         mHistoryAdapter = new DownloadHistoryAdapter(isOffTheRecord, parentComponent);
         mRecyclerView = mSelectableListLayout.initializeRecyclerView(mHistoryAdapter);
-        mItemAnimator = mRecyclerView.getItemAnimator();
 
         // Prevent every progress update from causing a transition animation.
-        mItemAnimator.setChangeDuration(0);
+        mRecyclerView.getItemAnimator().setChangeDuration(0);
 
         mHistoryAdapter.initialize(mBackendProvider);
         addObserver(mHistoryAdapter);
@@ -310,9 +307,8 @@ public class DownloadManagerUi implements OnMenuItemClickListener, SearchDelegat
             shareSelectedItems();
             return true;
         } else if (item.getItemId() == R.id.search_menu_id) {
-            mRecyclerView.setItemAnimator(null);
+            mSelectableListLayout.onStartSearch();
             mToolbar.showSearchView();
-            mSelectableListLayout.setEmptyViewText(R.string.download_manager_no_results);
             RecordUserAction.record("Android.DownloadManager.Search");
             return true;
         }
@@ -391,9 +387,8 @@ public class DownloadManagerUi implements OnMenuItemClickListener, SearchDelegat
 
     @Override
     public void onEndSearch() {
-        mSelectableListLayout.setEmptyViewText(R.string.download_manager_ui_empty);
+        mSelectableListLayout.onEndSearch();
         mHistoryAdapter.onEndSearch();
-        mRecyclerView.setItemAnimator(mItemAnimator);
     }
 
     private void shareSelectedItems() {